[INFO] fetching crate woodland 0.0.4...
[INFO] testing woodland-0.0.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate woodland 0.0.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate woodland 0.0.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate woodland 0.0.4
[INFO] finished tweaking crates.io crate woodland 0.0.4
[INFO] tweaked toml for crates.io crate woodland 0.0.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 572590395dddbb4d917b3b45e3124c4dad68b70687fd6c428b688fe1e2d20bee
[INFO] running `Command { std: "docker" "start" "-a" "572590395dddbb4d917b3b45e3124c4dad68b70687fd6c428b688fe1e2d20bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "572590395dddbb4d917b3b45e3124c4dad68b70687fd6c428b688fe1e2d20bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "572590395dddbb4d917b3b45e3124c4dad68b70687fd6c428b688fe1e2d20bee", kill_on_drop: false }`
[INFO] [stdout] 572590395dddbb4d917b3b45e3124c4dad68b70687fd6c428b688fe1e2d20bee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f4f0896665b2f14d3a1182b753578f210667279adaac6cf1ab4d0e8a0c175fb
[INFO] running `Command { std: "docker" "start" "-a" "5f4f0896665b2f14d3a1182b753578f210667279adaac6cf1ab4d0e8a0c175fb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling woodland v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "5f4f0896665b2f14d3a1182b753578f210667279adaac6cf1ab4d0e8a0c175fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f4f0896665b2f14d3a1182b753578f210667279adaac6cf1ab4d0e8a0c175fb", kill_on_drop: false }`
[INFO] [stdout] 5f4f0896665b2f14d3a1182b753578f210667279adaac6cf1ab4d0e8a0c175fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7247f0b1a25de2a1de1c027ff0f868c5ce12f5faa97a6541f71d307171aa585
[INFO] running `Command { std: "docker" "start" "-a" "e7247f0b1a25de2a1de1c027ff0f868c5ce12f5faa97a6541f71d307171aa585", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling woodland v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "e7247f0b1a25de2a1de1c027ff0f868c5ce12f5faa97a6541f71d307171aa585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7247f0b1a25de2a1de1c027ff0f868c5ce12f5faa97a6541f71d307171aa585", kill_on_drop: false }`
[INFO] [stdout] e7247f0b1a25de2a1de1c027ff0f868c5ce12f5faa97a6541f71d307171aa585
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 067e04e96df8ea84d52d51b387327e31a3444baf326f94beec71cd5524d2e372
[INFO] running `Command { std: "docker" "start" "-a" "067e04e96df8ea84d52d51b387327e31a3444baf326f94beec71cd5524d2e372", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/woodland-972b24283fb7209e)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/binary_tree.rs (/opt/rustwide/target/debug/deps/binary_tree-112f564c997eeedb)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests woodland
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test inorder_iterator_works ... ok
[INFO] [stdout] test mutating_root_works ... ok
[INFO] [stdout] test preorder_iterator_works ... ok
[INFO] [stdout] test simple_tree ... ok
[INFO] [stdout] test tree_new_is_empty ... ok
[INFO] [stdout] test postorder_iterator_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/binary_tree.rs - binary_tree::BinaryTree (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "067e04e96df8ea84d52d51b387327e31a3444baf326f94beec71cd5524d2e372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "067e04e96df8ea84d52d51b387327e31a3444baf326f94beec71cd5524d2e372", kill_on_drop: false }`
[INFO] [stdout] 067e04e96df8ea84d52d51b387327e31a3444baf326f94beec71cd5524d2e372